Cylinder stand



FIG. 1 is a front view of a cylinder stand showing a new design, wherein the rear view, left side view and right side view are a mirror-image thereof;

FIG. 2 is a bottom view of the cylinder stand illustrated in FIG. 1;

FIG. 3 is a top view of the cylinder stand illustrated in FIG. 1;

FIG. 4 is a bottom perspective view of the cylinder stand illustrated in FIG. 1; and,

FIG. 5 is a top perspective view of the cylinder stand illustrated in FIG. 1. 

CLAIM The ornamental design for a cylinder stand, as shown and described. 